workflows/backport: only trigger on backport labels (#404132)

Changed files
+1 -1
.github
workflows
+1 -1
.github/workflows/backport.yml
···
jobs:
backport:
name: Backport Pull Request
-
if: github.repository_owner == 'NixOS' && github.event.pull_request.merged == true && (github.event_name != 'labeled' || startsWith('backport', github.event.label.name))
+
if: github.repository_owner == 'NixOS' && github.event.pull_request.merged == true && (github.pull_request.action != 'labeled' || startsWith(github.event.label.name, 'backport'))
runs-on: ubuntu-24.04
steps:
# Use a GitHub App to create the PR so that CI gets triggered